Buhler PKE 522 Installation And Operation Instruction Manual

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Bedienungs- und Installationsanleitung

Installation- and Operation Instruction

Messgaskühler / Sample Gas Coolers PKE-5xx

BX440010 08/2013 Art. Nr. 90 31 105

3

Contents page

1 Introduction ..................................................................................................................... 19

2 Important Advice ............................................................................................................. 19

2.1 General Indication of Risk ............................................................................................................... 20

3 Installation and Connection ............................................................................................ 22

3.1 Mounting .......................................................................................................................................... 22

3.2 Electrical Connection ....................................................................................................................... 23

4 Operation and Maintenance ............................................................................................ 24

4.1 Operation ......................................................................................................................................... 24

4.2 Operation of Menu Functions .......................................................................................................... 24

4.2.1 Overview of the Menu Items ........................................................................................................ 25

4.2.2 Detailed Description of the operational Principle ......................................................................... 26

4.3 Description of the Menu Functions .................................................................................................. 26

4.3.1 Main Menu ................................................................................................................................... 26

4.3.2 Submenu Peltier cooler (Display: P5__)...................................................................................... 27

4.4 Maintenance .................................................................................................................................... 27

5 Repair and Disposal ........................................................................................................ 28

5.1 Repair .............................................................................................................................................. 28

5.2 Disposal ........................................................................................................................................... 28

6 Appendices ...................................................................................................................... 29

6.1 Safety Instructions ........................................................................................................................... 29

6.2 Troubleshooting ............................................................................................................................... 30

6.3 Replacement of Micro-Fuse of the Cooler ....................................................................................... 31

6.3.1 115 V and 230 V .......................................................................................................................... 31

6.3.2 24 V DC ....................................................................................................................................... 31

6.4 Cleaning of the heat exchanger ....................................................................................................... 31

6.5 Replacing the Fuse of the peristaltic Pump ..................................................................................... 32

6.6 Replacement of the peristaltic pump’s hose (just in case pump is fitted)........................................ 32

6.7 Spare parts ...................................................................................................................................... 32

6.8 Attached documents ........................................................................................................................ 32

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Bedienungs- und Installationsanleitung

Installation- and Operation Instruction

Messgaskühler / Sample Gas Coolers PKE-5xx

BX440010 08/2013 Art. Nr. 90 31 105

19

1 Introduction

The sample gas coolers of model range PKE 5xx are designed for applications in gas analysis systems. It is a

very important item in a sample conditioning system. Hence it is essential to read carefully the enclosed data

sheet and check that all application parameters are completely matched by the gas cooler.

The model range of PKE 5xx consists of the types listed below. The exact type follows from the type plate on

the device and the electronics, respectively (see also menu description in chapter 4.2)

Basic type

ambient temperature

number of heat exchangers

PKE 511

+5…40°C

1

PKE 521

+5…50°C

1

PKE 512

+5…40°C

2

PKE 522

+5…50°C

2

Table 1: Specifications of PKE 5xx

2 Important Advice

Please check prior to installation of the device that the technical data matches the application parameters.

Check that the delivery is complete as well.

Operation of the device is only valid if

- the product is used under the conditions described in the installation- and operation instruction, the intended

application according to the type plate and the intended use. In case of unauthorized modifications done by

the user Bühler Technologies GmbH can not be held responsible for any damage,

- the performance limits given in the datasheets and in the installation- and operation instruction are obeyed,

- monitoring devices and safety devices are installed properly,

- service and repair is carried out by Bühler Technologies GmbH, unless described in this manual,

- only original spare parts are used.

This manual is part of the equipment. The manufacturer keeps the right to modify specifications without

advanced notice. Keep this manual for later use.

Signal words for warnings:

NOTE

Signal word for important information to the product

CAUTION

Signal word for a hazardous situation with low risk, resulting in damage to the device or the

property or minor or medium injuries if not avoided.

WARNING

Signal word for a hazardous situation with medium risk, possibly resulting in severe injuries

or death if not avoided.

DANGER

Signal word for an imminent danger with high risk, resulting in severe injuries or death if

not avoided

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The following warning signs and signal words are used in this manual:

hazardous situation

disconnect from mains supply

hazardous voltage

wear face protector

electrical shock

wear respirator

toxic gases

wear gloves

corrosive Substances

Follow note

2.1 General Indication of Risk

Installation of the device shall be performed by trained staff only, familiar with the safety requirements and

risks.

Check all relevant safety regulations and technical indications for the specific installation place. Prevent failures

and protect persons against injuries and the device against damage.

The person responsible for the system must secure that:

- safety and operation instructions are accessible and followed,

- local safety regulations and standards are obeyed,

- performance data and installation specifications are regarded,

- safety devices are installed and recommended maintenance is performed,

- national regulations for disposal of electrical equipment are obeyed.

Maintenance and repair

- Repairs on the device must be carried out by Bühler authorized persons only.

- Only perform modifications, maintenance or mounting described in this manual.

- Only use original spare parts.

During maintenance regard all safety regulations and internal operation instructions.

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Installation- and Operation Instruction

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BX440010 08/2013 Art. Nr. 90 31 105

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DANGER

Electrical voltage

Electrocution hazard.

Disconnect the device from power supply. Make sure that the equipment cannot

be reconnected to mains unintentionally.

The device must be opened by trained staff only.

DANGER

Toxic and corrosive gases

Sample gas can be hazardous.

Take care that the gas is exhausted in a place where no persons are in danger.

Protect yourself during maintenance against toxic / corrosive gases. Use gloves,

respirator and face protector under certain circumstances.

DANGER

Explosion hazard if used in hazardous areas

The device is not suitable for operation in hazardous areas with potentially

explosive atmospheres.

Do not expose the device to combustible or explosive gas mixtures.

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3 Installation and Connection

The PKE 5xx coolers are designed for indoors applications. If the device is installed outside provide sufficient

weather protection.

The PKE 5xx sample cooler is to be attached to vertical panels. Provide enough space below the device to

drain off condensate. Above leave some space for providing gas flow.

The allowed ambient temperature shall not exceed the values according to Table 1 on page 19. Free air

circulation must be provided. Leave enough space to any obstacle to the lateral ventilation grilles. Particularly

with regard to the air outlet (on the right) keep a gap of at least 10 cm (4 inches). If the device is mounted

inside closed covers, e.g. cabinets for gas analysis systems, provide adequate air circulation. If convection

alone is not sufficient, rinse the cabinet with air or install additional fans to lower the inner temperature.

3.1 Mounting

With glass heat exchangers, make sure that the gasket is inserted in correct orientation. The gasket consists

of a silicon ring and a PTFE shield. The PTFE shield must point to the glass thread.

PTFE

Glass

A000268

Make sure that all sample gas lines leading to the cooler are installed with a downward slope. In some

applications with very high condensate content separators upstream the cooler could become necessary. Best

suited are our fluid separators with automatic condensate drain 11 LD, especially AK20 or type 165.

The gas entrance is marked with red. Connect the hoses to the heat exchangers made of DURAN glass with

care to avoid breaking the glass.

To drain condensate glass vessels or automatic condensate drains are provided for external mounting below

the device. If the sample gas pump is located upstream of the cooler, the condensate can be drained off by

automatic condensate drains.

NOTE

Heat exchangers MTS and MTV (cooler with two heat exchangers) cannot be used with

automatic condensate drains.

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If the sample gas pump is installed downstream the cooler, we recommend using glass condensate vessels or

peristaltic pumps.

Mounting the condensate drains: depending on the used material the condensate drain may be connected to

the heat exchanger directly by stainless steel pipes or hoses. The condensate drains can be attached directly

to such coolers with stainless steel heat exchangers. In case of glass heat exchangers the condensate drains

must be connected with flexible hoses and fixed with by brackets separately. The condensate lines must be

installed with considerable slope and should not have less than 8 mm (0.3 inch) inner diameter.

If peristaltic pumps are used, they may be installed in some distance from the cooler.

3.2 Electrical Connection

WARNING

The device must be installed by trained staff only.

CAUTION

Wrong mains voltage may damage the device.

Regard the correct mains voltage as given on the type plate.

WARNING

Damage to the device in case of insulation testing

Do not proceed insulation tests with high voltage to the device as a whole.

The device is equipped with extensive EMC protection. If insulation tests are carried out the electronic filter

devices will be damaged. All necessary tests have been carried out for all concerned groups of components at

the factory (test voltage 1 kV or 1.5 kV respectively, depending on the device).

The PKE5xx is equipped with two connectors on top of the unit. One connector is for the power supply and the

other one for the alarm output. They cannot be interchanged and must be wired according to the following

diagram (numbering can be found on the connectors). Make sure they are correctly refitted after wiring.

If the PKE 5xx is equipped with peristaltic pumps, they must be connected to a separate power supply.

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4 Operation and Maintenance

4.1 Operation

After turning on the power supply the display shows the actual temperature of the cooling block. The display

blinks until the (set) temperature range with respect to the preset output dew point is reached. The status

contact is switched to “Alarm”.

If the temperature range is reached, the actual temperature is shown constantly and status contact switches

back.

If the display starts blinking during operation or an error message is displayed see chapter 6.1

“Troubleshooting”.

For performance limits see datasheet.

4.2 Operation of Menu Functions

Overview of the operational principal:

Use this short description if you have experience with Peltier coolers.

You will find detailed description in chapter 4.2.2 and chapter 4.1.

Keys:

Operation is carried out by only the keys with the following functions:

Key

Function

j

 Switch from measurement display to main menu

 Selection of the display menu item

 Accepting the changed value or selection

t

 Switch to the upper menu item

 Increase of the value of switching the selection

 Temporary display of the alternative measurement display (if option is installed)

b

 Switch to lower menu item

 Decrease of the value of switching the selection

 Temporary display of the alternative measurement display (if option is installed)

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4.2.1 Overview of the Menu Items

Display of current temperature and operating state

Peltier Gas Cooler

Display: P5__

2°C...20°C

Display: xxxx

Global Settings

Display: toP

+1°C…+7C

Display: xxx

Exit Main Menu

Display: E

t b

Exit Submenu

Display: E

j

Main Menu

Set Temperature

Display: tEMP

Submenu

upper alarm threshold

Display: A Hi

Setting Range

Celsius/ Fahrenheit

Display: C [F]

j

t b

j

Current Temperature

Display: xxxx

Displayed is the block temperature with a resolution of 0.5°C. By pressing the Enter button brings the display to

the Main Menu. The unit of temperature is adjustable in the menu Global settings (Celsius or Fahrenheit).

Adjust the set point:

2°C...20°C

Set the upper alarm

Threshold above setpoint:

tEMP +1°C...+7°C

Set unit to Celsius or

Fahrenheit.

-1°C…-3C

Display: xxx

lower alarm threshold

Display: A Lo

j

t b

Set the lower alarm

Threshold below setpoint:

tEMP -1°C...-3°C

t b adjust value

j store value

wait 4s: no storage

VE 00 0001

Fig. 1: Overview of the menu

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4.2.2 Detailed Description of the operational Principle

This detailed description leads you through the menu for the cooler step by step.

 Connect the cooler to the power supply and wait until the power-up sequence has finished. First the

version of the implemented software is displayed for a short time. Then the device switches to the

measurement display.

 Pressing the j key switches from display-mode to main menu. (It is guaranteed that the control

continues during setting-mode.)

 You can navigate through the main menu using the t b keys according to Fig. 1.

 To accept the menu item press j and the related submenu is activated.

 Now the parameters may be set. To change the parameters scroll the submenu using the keys t b

and confirm the selected menu item with

 The values can be changes within their limits using the keys t b. Pressing the enter key (j) stores

the set value. Afterwards the device returns to the submenu automatically.

 Wait for a few seconds without pressing any key to return to the submenu without saving the values.

 The same procedure holds for the sub- and main menu. If you forget to quit the menu, the system

returns automatically to display mode. In this case the preset values are kept instead of being reset.

Note: As soon as the values are saved by pressing the enter key, they are accepted for regulation.

 Quit the main menu or the submenu by selecting the menu item E (Exit)

4.3 Description of the Menu Functions

4.3.1 Main Menu

Peltier cooler (PKE 5xx)

Peltier cooler:

This item allows all relevant settings for the Peltier cooler. In the corresponding

submenu nominal temperature and alarm limits may be selected.

Global settings (toP settings)

Top settings

Selection of the global temperature unit, either degree Celsius (C) or degree

Fahrenheit (F)

Note:

This menu item has no sub-item. The temperature unit is directly selected.

Exit main menu

Exit

Selecting this item returns to the display mode.

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4.3.2 Submenu Peltier cooler (Display: P5__)

Peltier cooler Nominal temperature

Temperature

This item allows setting of the nominal temperature for the cooler. The value can

be set within a range from 2°C (35.6°F) to 20°C (68°F).

Note:

Default value at delivery is 5°C (41°F) (unless otherwise agreed).

Peltier cooler  upper alarm threshold (Alarm high)

Alarm high

This item allows setting of the upper alarm threshold for the optical alarm as well

as for the alarm relay. The upper alarm threshold may be set in the range from

+1°C (+1.8°F) to +7°C (+13°F) above the nominal temperature.

Note:

Default value at delivery is +3°C (+5°F) (unless otherwise agreed).

Peltier cooler  lower alarm threshold (Alarm low)

Alarm low

This item allows setting of the lower alarm threshold for the optical alarm as well

as for the alarm relay. The lower alarm threshold may be set in the range from -

1°C (-1.8°F) to -3°C (-5°F) below the nominal temperature.

Note:

Default value at delivery is -3°C (-5°F) (unless otherwise agreed).

Exit submenu

Exit

Selecting this item returns to the main menu.

4.4 Maintenance

Basic versions of the cooler run maintenance free.

If the PKE 5xx is equipped with a peristaltic pump, the hoses have to be checked in regular intervals depending

on the gas. Displacement of the hoses is described in chapter 6.4.

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5 Repair and Disposal

5.1 Repair

If the device shows irregularities see chapter 6 for troubleshooting.

If you need help or more information

call +49(0)2102-498955 or your local agent.

If the device doesn’t work correctly after elimination of failures and turning power on, the device must be

checked by the manufacturer. Please ship the device with suitable packing to

Bühler Technologies GmbH

- Service -

Harkortstraße 29

40880 Ratingen

Germany

In Addition, attach the filled in and signed Declaration of Decontamination status to the packing. Otherwise,

your repair order cannot be processed! The form can be requested by e-mail to service@buehler-

technologies.com.

5.2 Disposal

Regard the local regulations for disposal of electric and electronic equipment.

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6 Appendices

6.1 Safety Instructions

NOTE

Trained staff only shall install the device. Check for correct supply voltage.

The cooler must not be operated out of the range of its specifications.

Regard the corresponding safety and operation regulations during maintenance or servicing.

Only perform modifications, servicing or mounting described in this manual.

Any manipulation on the gas cooler which is not described in this manual should only be

executed by Bühler authorised staff.

Only use original spare parts.

DANGER

Hazardous voltage

Electrocution hazard

Before any manipulation on the device, disconnect the electrical equipment from

the main power supply. Make sure that the electrical equipment cannot be

reconnected during repair or maintenance. The wiring must be done by trained

staff only.

DANGER

Toxic / corrosive gases and liquids

Poisoning, chemical burn of skin, eyes and lungs possible

Protect yourself against toxic / corrosive gases and liquids. If necessary wear

protection gloves, respirator and face protector.

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6.2 Troubleshooting

Problem / Failure

Possible cause

Solution

No display

- no power

- check power supply

- fuse blown

- Check fuse and change it if

necessary

Status-LED blinks with

- High Temperature

- operational temperature not yet

reached

- wait for 20 minutes maximum

- cooling capacity to low, even

though cooler is running

- make sure that air can circulate

free and that ventilation louvres

are not obstructed

- gas flow / dew point / gas tempe-

rature to high

- check application parameters,

install pre-separator

- fan broken

- check fan, replace if necessary

- Low temperature

- controller defect

- send cooler for inspection

Display of an error

Error 01

- broken wire

- Temperature sensor defect: send

cooler for repair

Error 02

- short circuit

- Temperature sensor defect: send

cooler for repair

Condensate in gas outlet

- condensate vessel full

- drain vessel

- valve in automatic condensate

drain is stuck

- flush both directions

- cooler overloaded

- check limiting parameters

Reduced gas flow

- clogged gas path

- check / flush heat exchanger

- condensate outlet clogged by ice

- send cooler for inspection

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6.3 Replacement of Micro-Fuse of the Cooler

6.3.1 115 V and 230 V

 Disconnect the cooler from power supply.

 Loosen the 8 screws fixing the cover to the case. If peristaltic

pumps are installed to the cooler they must be disassembled

because they are fixed with the cover-screws.

 Remove the cover carefully. Caution: The display is fixed to the

cover and is connected to the electronics inside the device. The

plug can be put off to lay the cover down.

 The fuse is placed on the small supply circuit board, covered by a

plastic cap. Replace the fuse and refit the cap. Regard the supply

voltage for choosing the correct fuse.

 Reconnect the plug of the display and fix the cover. Fasten the

screws or install the pumps, respectively.

 Reconnect power supply.

6.3.2 24 V DC

 Disconnect the cooler from power supply.

 Loosen the 8 screws fixing the cover to the case.

 Remove the cover carefully. Caution: The display is fixed to the

cover and is connected to the electronics inside the device. The

plug can be put off to lay the cover down.

 The fuse is placed in the fuse holder (see picture). Turn to open it

and replace the fuse. Regard the supply voltage for choosing the

correct fuse.

 Reconnect the plug of the display and fix the cover. Fasten the

screws.

 Reconnect power supply.

6.4 Cleaning of the heat exchanger

The heat exchanger must be replaced only in case of damage or when clogged. In the latter case we

recommend to check if the use of a filter will avoid such clogging in the future.

 Turn off gas supply.

 Disconnect the cooler from the mains.

 Loosen gas fittings and condensate drain fitting. Collect condensate.

 Pull out the heat exchanger upwards out of the cooler.

 Clean the cooling nest (hole in cooling block).

 Clean the heat exchanger until all impurities are disposed.

 Grease the heat exchanger on the cooling surfaces with silicone grease.

 Introduce the heat exchanger with turning movement into cooling nest.

 Re-establish fittings for gas tubes and condensate drain.

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6.5 Replacing the Fuse of the peristaltic Pump

 Disconnect the pump from the mains.

 Remove the insulation cover from the fuse holder at the pump’s mounting bracket. For this, push the

cover using a screw driver and quarter-turn it to the left.

 Replace the fuse and refit the insulation cover by quarter-turning it to the right.

 Reconnect the cooler to the mains.

6.6 Replacement of the peristaltic pump’s hose (just in case pump

is fitted)

 Turn off gas supply.

 Switch the device off and disconnect power supply.

 Disconnect input and output hoses (Take care of the safety instructions!)

 Loosen but don’t remove the centre knurled thumb screw. Push screw downwards.

 Remove cover

 Push terminals side wards.

 Replace hose and step backwards the above steps for mounting.

6.7 Spare parts

To order spare parts please indicate type of cooler and serial no. For accessories and enhancement see data

sheets and/or catalogue.

The following parts are recommended for stocking:

Spare part

Part no.

Replacement hose for peristaltic pump 0.3 l/h

(only if your cooler is equipped with pump)

91 240 30 027

Fuse cooler

230 V

5x20 mm, 1.25 A slow

91 100 00 058

115 V

5x20 mm, 2.5 A slow

91 100 00 013

24 V DC

5x20 mm, 6.3 A slow

91 100 00 063

Fuse peristaltic pump

230 V / 115 V

5x20 mm, 1 A fast-acting

91 100 00 061

Display ABT 400

91 000 10 124

Controller board MCP1

91 000 10 125

Controller board PKE

91 000 10 126

Mains board

91 000 10 127

6.8 Attached documents

- Data sheet PKE 5xx: DE 44 0012, DA 44 0012

- Declarations of conformity: KX 44 0002

- Declaration of Contamination status

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Sample Gas Cooler PKE 5

The PKE Models feature a semiconductor Peltier cooling

system with an aluminum cooling block. Fitted into the block

are one or two removable high efficient heat exchanger

made of stainless steel, DURAN-glass or PVDF.

The dew point of 5 °C is regulated by an electronic controller.

The temperature (in °C or °F) of the cooling block is shown on

a programmable LED-display. The status is indicated by a

flashing display which shows too high or low temperature

and operates together with a relay in fail-safe mode.

Condensate is removed by peristaltic pumps, automatic

condensate drains or condensate vessels.

The PKE 5 is designed for moderate ambient and gas

temperatures (150 l/h @ 70°C) and an inlet dew point of

about 40 °C (appox. 5 Vol%). For higher ambient tempera-

tures up to a maximum of 50 °C order the PKE 52x.

§

Compact design

Easy installation

No maintenance required

Low noise

Model available for high ambient

temperatures

Nominal cooling capacity 90/100 kJ/h

Dew point stability 0.1 °C

Status display and status output

Cooling temperature display

DE 44 0012

Page 1/4

02/2014

Bühler Technologies GmbH

D - 40880 Ratingen, Harkortstr. 29

Tel.: + 49 (0) 2102 / 4989-0 Fax: + 49 (0) 2102 / 4989-20

Internet: www.buehler-technologies.com

e-mail: [email protected]

Model Overview

The PKE 5 Peltier cooler family includes several types which may be categorised by two criteria:

1) Cooling capacity and maximum ambient temperature

2) Number of heat exchangers

These criteria can be specified in the model number as shown in the table below. Please extract the part number for the

cooler fulfilling your requirements from the type code on page 4.

The general specifications can be found in the table below. On the next page are the performance curves and the

specifications for each cooler. In the table below that there is an overview of the heat exchanger's data.

Description

The PKE coolers are controlled by a microprocessor. The

different operating characteristics of the heat exchangers

are established at the factory.

Menu-guided with three keys it is easily possible to adapt

settings to the specific requirements of any application.

Warning limits for high or low temperature can be set

relative to the chosen outlet dew point . For low

temperature the range is 1..3°C (minimum 1°C / 34°F).

For high temperature it is +1..7°C. Factory preset for

both is 3°C.

The status contact could be used to control the sample gas

pump so that the gas flow is turned on when the cooler

reaches the desired temperature.

The outlet dew point can be set in a range of 2 to 20 °C

(36..68°F). It is factory preset to 5°C (41°F).

When the warning limits are exceeded (e.g. at start-up) this

is signalised by a flashing display and the status contact.

t

a

Technical Specifications for All Models

Ready for application after max. 10 Minutes

Ambient temperature +5 to 40 °C/ 50 °C

Factory set dew point 5°C

Protection class IP 20

Material of housing stainless steel

Packing dimensions appr. 350 mm x 220 mm x 220 mm

Weight including heat

exchanger(s) appr. 7,5 kg

at 24 V DC appr. 6 kg

Power supply 115 V AC, 230 V AC

or 24 V DC, 50/60 Hz

Power consumption max. 120 VA

Status output max. 230 V AC, 150 V DC

2A,50VA,dry

Potential-free

Electrical connectors

Standard applications

(PKE 511, 512, 521, 522) plugs according to DIN 43650

DE 44 0012

Page 2/4

02/2014

Application:

40 °C 50 °C

Standard

Max. ambient temperature:

1 heat exchange

2 heat exchanger

PKE 511 PKE 521

PKE 512 PKE 522

3rd no. = 1

3rd no. = 2

2nd no. = 1

2nd no. = 2

5 10152025303540°C50

0

20

40

60

80

120

5 1015 2025 303540

°C

50

0

20

40

60

80

120

5 1015202530

°C

35 40

kJ/h

0

20

40

50

80

120

5 10152025303540

°C

kJ/h

10

30

60

70

90

100

0

20

40

50

80

120

kJ/h

10

30

60

70

90

100

One heat exchanger

Type PKE 511

Nominal cooling capacity (at 25 °C) 100 kJ/h

Max. ambient temperature 40 °C

Drift over full range ± 1.5 K

Dew point noise static ± 0.1 K

Two heat exchangers

Type PKE 512

Nominal cooling capacity (at 25 °C) 100 kJ/h

Max. ambient temperature 40 °C

Dew point noise static ± 0.1 K

Drift over full range ± 1.5 K

Temperature differential between

heat exchangers < 0.5 K

Type PKE 521

Nominal cooling capacity (at 25 °C) 90 kJ/h

Max. Ambient temperature 50 °C

Dew point noise static ± 0.1 K

Drift over full range ± 1.5 K

Type PKE 522

Nominal cooling capacity (at 25 °C) 90 kJ/h

Max. Ambient temperature 50 °C

Dew point noise static ± 0.1 K

Drift over full range ± 1.5 K

Temperature differential between

heat exchangers < 0.5 K

Heat exchanger

The energy content of the sample gas and, as a result, the required cooling capacity of the cooling system is determined by 3

parameters: gas temperature , dew point (moisture content) and flow v.

The outlet dew point raises with increasing energy content (heat) of the gas. The required cooling capacity is determined by the

mximum acceptable level of the outlet dew point.

The following table shows cooler performance assuming the following conditions: =40°C and =70°C. Indicated is the v in

Nl/h cooled air (i.e. after the moisture has condensed). With other dew points and gas inlet temperatures the values may differ.

Jt

tJ

Ge

e G max

Please contact one of Buhler’s application specialists for assistance and further information.

Heat exchanger GPTS PTG PTV MTS MT MTV

PTS-I PTG PTV-I MTS-I MTG MTV-I

3) 3) 3)

2) 2) 2) 3) 3) 2) 3)

)

Flow rate v 450 l/h 250 l/h 250 l/h 300 l/h 210 l/h 190 l/h

Inlet dew point 65 °C 65 °C 65 °C 65 °C 65 °C 65 °C

Gas inlet temp. 180 °C 140 °C 140 °C 140 °C 140 °C 140 °C

Max. cooling capacity Q 150 kJ/h 90 kJ/h 90 kJ/h 95 kJ/h 80 kJ/h 65 kJ/h

Gas pressure p 160 bar 3 bar 2 bar 25 bar 3 bar 2 bar

Pressure drop p (v=150 l/h) 10 mbar 10 mbar 10 mbar 20 mbar 19 mbar 18 mbar

Dead volume 29 ml 29 ml 57 ml 19 ml 18 ml 17 ml

Swagelok 6 mm GL 14 DN 4/6 tube 6 mm GL14 (6 mm) DN 4/6

1/4” GL 14 (1/4”) 1/4”-1/6” tube 1/4” Gl14 (1/4”) 1/4”-1/6”

G 3/8“ GL 25 G3/8" G1/4” GL18 (8 mm) G 1/4”

NPT 3/8“ GL 25 (1/2”) NPT 3/8" NPT 1/4” GL18 (8 mm) NPT 1/4”

max

e,max

G,max

max

1)

4

1)

2)

3)

4)

t

J

D

Sample gas connections (metric) (6 mm)

(US)

Condensate out connection (metric) (12 mm)

(US)

Consider the maximum cooling capacity of cooler

Heat exchangers MTS, MTG and MTV cannot be drained by automatic drainers

Inner diameter gasket

Types marked “I” have NPT-threads or US tubes, respectively

Note: The limits in the diagrams for the PTG, PTV respectively MTV are for a dew point of 40°C.

DE 440012

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02/2014

limit for

2xMTV

PKE with

2xMTS

Ambient temperature

PKE with

PTS

limit for

PTG,PTV

Ambient temperature

PKE with

2xMTS

limit for

2xMTV

Ambient temperature

limit for

PTG,PTV

Ambient temperature

Cooling capacity

PKE with

PTS

limit for

2xMTG

limit for

2xMTG

4

6

0

5

11

521

1

2

3

1

2

0

1

512

522

1

3

1

2

0

2

NETZ

POWER

ALARM-

AUSGANG

ALARM-

OUTPUT

ENTER

292

90

Ø7

114,5

105,5

98

112

165

153,5

310

140

150

130

A000138X

3

4

3

4

0

2

5

6

5

6

Types with one Heat Exchanger

PKE 511: Standard ambient temperature 40 °C

PKE 521: Standard ambient temperature 50 °C

115 V metric fittings

Power Supply

230 V metric fittings

Stainless steel / (PTS or PTS-I)

Glass / (PTG)

Material Heat Exchanger / Version

PVDF / (PTV or PTV-I)

Condensate Discharge

None

One peristaltic pump

Types with two Heat Exchangers

115 V metric fittings

Power Supply

230 V metric fittings

Stainless steel / (MTS or MTS-I)

Material Heat Exchanger / Version

PVDF / (MTV or MTV-I)

PKE 522: Standard ambient temperature 50 °C

Condensate Discharge (only 115 V / 230 V)

1)

PKE 512: Standard ambient temperature 40 °C

None

Two peristaltic pumps

1)

Heat exchangers MTS, MTG and MTV cannot be drained by automatic drainers

DE 440012

Page 4/4

02/2014

Accessories

Part No. Description

45 100 08 Automatic condensate drain type AK 5.2

44 100 05 Glass vessel GL 1

91 240 300 27 Spare tube for peristaltic pump, right angle terminals

Please indicate with order

Please extract the part number for the cooler fulfilling your requirements from the type code below.

: Each gas path should be equipped with a peristaltic pump or an automatic condensate drain. A peristaltic

pump cannot be installed at the factory in versions with 24 V mains supply.

Please note

We reserve the right to amend specification

Dimensions (mm)

Models for standard applications (PKE 51x und 52x)

Air

In

Air

Out

Air

In

Air

Out

115 V US fittings

230 V US fittings

Glass / (MTG)

Part-no.

24 V DC metric fittings

24 V DC US fittings

24 V DC metric fittings

24 V DC US fittings

Sample Gas Cooler PKE 5

Accurate measurement of gases requires gas samples with

stable dew points even under harsh ambient conditions.

The PKE 5 is designed for moderate ambient and gas

temperatures (2.5 lpm at @ 158 °F) and an inlet dew point of

about 104 °F (approx. 5% vol). For higher ambient tempera-

tures up to a maximum of 122 °F order the PKE 52x.

The dew point of 41 °F is regulated by an electronic control-

ler. The temperature (in °F or °C) of the cooling block is

shown on an LED-display. The status is indicated by a

flashing display which shows high or low temperature and

operates together with a relay in fail-safe mode.

Condensate is removed by peristaltic pumps, automatic

condensate drains or condensate vessels.

The PKE Models feature a semiconductor Peltier cooling

system with an aluminum cooling block. Fitted into the block

is a removable high-efficiency heat exchanger made of

stainless steel, DURAN-glass or PVDF.

§

Compact design

Easy installation

No maintenance required

Low noise

Efficient heat exchangers made of

stainless steel, Duran glass or PVDF

Nominal cooling capacity 85/95 Btu/hr

Dew point stability 0.2 °F

Status display and output

Cooling temperature display

Model available for high ambient

temperatures

DA 44 0012

Page 1/4

02/2014

Buhler Technologies LLC

1030 West Hamlin Road, Rochester Hills, MI 48309

Phone: 248.652.1546 Fax: 248.652.1598

Internet: www.buhlertech.com

e-mail: [email protected]

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